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प्रश्न
What is dissipation of energy?
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उत्तर
In transforming the mechanical energy if a part of it gets converted into another form of energy that cannot be utilized for useful work, this loss of energy is called the dissipation of energy.
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संबंधित प्रश्न
Fill in the blank
The energy possessed by a body due to its position is called ________ energy.
Name the type of energy (kinetic or potential) possessed by the following:
A moving bus.
Give one relevant example for the following transformations of energy:
Chemical energy to heat energy.
Give one example to show that the sum of potential energy and kinetic energy remains constant if friction is ignored.
A body of mass m falls down through a height h. Obtain an expression for the work done by the force of gravity.
A boy of mass m climbs up a staircase of vertical height h.
(a) What is the work done by the boy against the force of gravity?
(b) What would have been the work done if he uses a lift in climbing the same vertical height?
Why using wood as fuel is not advisable although wood is a renewable source of energy?
The following are some of the energy transformations.
A. Electrical to light
B. Work to heat
C. Chemical to light
D. Electrical to sound
E. Mechanical to electrical
Identify the energy transformation that takes place in the following by inserting the corresponding letter in the shape provided.
(i) A candle flame
(ii) A torch is lighted
(iii) A microphone is used in a meeting
(iv) A cycle dynamo
(v) A piece of metal is being filed
What kind of energy is possessed in a situation when?
An electron spinning around the nucleus.
Can you tell?
Describe one natural chain of transformation of energy.
